. Q. I hate to still keep you on the "cold roof" subject, but I want to make a cold roof on my 6,000 square foot Victorian 4-unit with 2 furnaces that are located in the attic. What can I do? K.C.

Q. This week: My house was built in 1991 and the shingles on the roof are wearing out. It's time to replace them, and I wondered if this would be a good time to maybe do something about the ice dams ...